The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Chambers of Mark Howard QC and Helen Davies QC

Work 020 7379 3550
Fax 020 7379 3558

Margaret Gray

Work 020 7379 3550
Brick Court Chambers (Chambers of Mark Howard QC and Helen Davies QC)


Barrister specialising in competition law, EU law, public and administrative law and public procurement law, with particular experience in energy, environment, and financial regulation Consistently ranked in the Legal 500 as a leading junior in EU and competition, public and administrative and procurement law. The Lawyer “Hot 100” listing in 2012 for reputation as EU specialist. Over 40 cases before the CJEU include: Case T-208/11 Liberation Tigers of Tamil Eelam v Council (sanctions); Cases C-201/11 P and others FIFA and UEFA v Commission (free-to-air broadcasting of World Cup and UEFA); Case C-374/11 Commission v Ireland (fines and penalty payments); Case C-358/11 Sweetman and others (environment; habitats); Joined Cases C-106/09 P and C-107/09 P Spain v Gibraltar [2011] (state aid and corporate taxation); C-337/08 X Holding (corporate tax); C-567/07 Servatius (state aid); Case C-336/07 Kabel Deutschland Vertrieb and Service; C-217/08 Rita Mariano (equality); Case C-394/07 Gambazzi (Brussels Convention); C-52/07 Kanal 5 and TV 4 (copyright and Article 82 EC); Case T-256/07 OMPI v Council (sanctions); Courage v Crehan [2001] I-6297; Cases T-406/10 Emesa and Galycas (pre-stressing steel cartel); Cases T-540 and 541/08 Esso and others (paraffin wax cartel); Cases T – 186/06, 191/06, 197/06 and 199/06 Akzo Nobel and others (hydrogen peroxide and perborate cartel); and Cases T – 53/06, 59/06, 64/06 and 65/06 UPM-K & ors (industrial bags cartel). National court cases include: (E&W) Central Craigavon Ltd v The Department of the Environment for Northern Ireland UKSC 2013 (withdrawn); DEFRA v Bloomsbury International (UKSC 2011); Conex Banninger v European Commission (EWCA 2011); CGTSN v BAA & ors [2010] EWHC; London Metal Exchange v OFT [2006] CAT 19; The Guild (Claims) v Eversheds & ors [2001] Lloyd’s Rep PN 910; R v Secretary of State for Health ex parte Association of Parallel Importers and Dowelhurst [2002] EuLR 197; Esso v Parks [2000] EuLR Vol 4.1; R v Lord Saville and others Ex Parte A & ors [2000] 1 WLR 1855; In re Medicaments and Related Classes of Goods (No 2) [2001] 1 WLR 700; Director General of Fair Trading v PAGB and another [2001] 1 WLR 269; (Northern Ireland) JR65 [2013] NIHC (conditions of blood donation); Casey v GMC [2011] NIHC; Care Plus and others v Western Trust (public procurement in NI health service) NIHC (withdrawn); Norbrook Laboratories v Veterinary Medicines Directorate [2010] HC and CA; Black and Clements v AADB [2010] HC; (Ireland) Viridian Group v CER [2014]; Competition Authority v IMO [2013] IEHC; Shannon LNG v CER [2013]; Aer Lingus v Ireland and others [2013]; Minister for Finance v Aer Lingus [2013]; Irish Bank Resolution Corporation v Browne; Phone Paid and others v Ireland and others [2011]; Viridian & ors v Commission for Energy Regulation; Tristor v Minister for the Environment and others [2010] IEHC; Sweetman v An Bord Pleanala [2010] IESC; Ringaskiddy & District Residents Association & ors v EPA & ors and O’Leary & ors v An Bord Pleanala & ors [2008] IESC 55; Sweetman v An Bord Pleanala [2009] IEHC.


Called 1998, Gray’s Inn; lecturer in law at LSE and Worcester College, Oxford University 1997-98; référendaire to Judge Fidelma Macken and Judge Aindrias O Caoimh at the Court of Justice of the European Union 2002-05; called Ireland 2005; Attorney General’s Panel of Counsel (E&W) (B Panel) 2012; called Northern Ireland 2009; visiting lecturer in EU Law, Universities of Liège and of Milan, from 2009. Publications include: ‘EU Competition Law: Procedures and Remedies’, by Gray, Lester et al (Richmond 2006); ‘EU Free movement and Sport’ in ‘Sports Laws and Practice’ (Butterworths 2003).




Committee member Bar European Group; United Kingdom Association for European Law; European Circuit and Irish Society of European Law; COMBAR; Irish Centre for European Law; Irish Environmental Law Association and Copyright Association of Ireland; practising member Law Library, Dublin; external member Bar Library, Belfast.


Ballyclare High School, Co Antrim, Northern Ireland; Hertford College, Oxford University (1995 BA Jurisprudence; 1996 BCL First Class); College of Europe, Bruges (1997 LLM); Bar Vocational Course (1998); Diplome Juridique en droit Français (2002).


Reading, tennis, Bar choir.

London Bar

Administrative and public law (including local government)

Within: 2019 Silks

Margaret Gray QC - Brick Court ChambersA phenomenal intellect.

[back to top]


Within: 2019 Silks

Margaret Gray QC - Brick Court ChambersRefreshingly straight-to-the-point.

[back to top]

EU Law

Within: 2019 Silks

Margaret Gray QC - Brick Court ChambersEuropean firms think she is excellent.

[back to top]

Public procurement

Within: 2019 Silks

Margaret Gray QC - Brick Court ChambersA multi-jurisdictional practitioner – allowing her to offer an extra dimension and particularly attractive in Brexit times.

[back to top]

Back to index

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to